“…In a series of studies, Sameroff and colleagues (1987a; 1987b; 1993) have reported evidence that increases in the number of childhood risk factors predict a wide range of maladaptive outcomes among children and adolescents. Additional studies have linked cumulative risk exposure to internalizing problems, externalizing problems, juvenile delinquency, and drug use (Adelmann, 2005; Dekovic, 1999; Farrell, Danish, and Howard, 1992; Gerard and Buhler, 2004a; Gerard and Buhler, 2004b; Jessor et al, 1995; Mason et al, 2016; Morales and Guerra, 2006; Stouthamer-Loeber et al, 2002), as well as reduced academic performance, educational attainment, and cognitive functioning (Dubow and Luster, 1990; Gassman-Pines and Yoshikawa, 2006; January et al, 2017; Luster and McAdoo, 1994). …”